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#627948#5466. Permutation CompressionlaonongminWA 1ms5704kbC++172.2kb2024-10-10 17:47:192024-10-10 17:47:19

Judging History

你现在查看的是最新测评结果

  • [2024-10-10 17:47:19]
  • 评测
  • 测评结果:WA
  • 用时:1ms
  • 内存:5704kb
  • [2024-10-10 17:47:19]
  • 提交

answer

#pragma GCC optimize(3)
#include <bits/stdc++.h>
#define ll long long
#define pii pair<int,int>
#define N 200005
#define MOD 998244353
using namespace std;
int n,m,k;
int a[N],l[N];

int nxt[N], pre[N];
void del(int i)
{
    pre[nxt[i]] = pre[i];
    nxt[pre[i]] = nxt[i];
}
void solve()
{
    cin>>n>>m>>k;
    priority_queue<pii> q;
    multiset<int> s;
    bool ok = true;
    for(int i=1;i<=n;++i) {cin>>a[i]; l[i]=1; nxt[i]=i+1; pre[i]=i-1;}
    for(int i=1,j=1;i<=m;++i,++j)
    {
        int b; cin>>b;
        while(j<=n && b!=a[j])
        {
            q.push({a[j], j});
            ++j;
        }
        if(j>n) ok = false;
    }
    for(int i=1;i<=k;++i)
    {
        int x; cin>>x;
        s.insert(x);
    }

    if(!ok) {cout<<"NO\n"; return;}

    stack<pii> stk;
    a[n+1] = a[0] = n+1;
    for(int i=1;i<=n+1;++i)
    {
        while(!stk.empty() && stk.top().first<a[i])
        {
            int j = stk.top().second;
            l[j] += i-j-1;
            stk.pop();
        }
        stk.push({a[i], i});
    }
    while(!stk.empty()) stk.pop();
    for(int i=n;i>=0;--i)
    {
        while(!stk.empty() && stk.top().first<a[i])
        {
            int j = stk.top().second;
            l[j] += j-i-1;
            stk.pop();
        }
        stk.push({a[i], i});
    }
    while(!stk.empty()) stk.pop();


    while(!q.empty())
    {
        auto [x,i] = q.top();
        q.pop();
        auto it = s.upper_bound(l[i]);
        if(it == s.begin()) {cout<<"NO\n"; return;}
        s.erase(--it);
        del(i);
        if(pre[i] && nxt[i])
        {
            if(a[pre[i]] < a[nxt[i]])
            {
                int pos=nxt[i];
                int j=pos;
                while(pre[j] && a[pre[j]]<a[pos]) ++l[pos], j=pre[j];
            }
            else
            {
                int pos=pre[i];
                int j=pos;
                while(nxt[j] && a[nxt[j]]<a[pos]) ++l[pos], j=nxt[j];
            }
        }   
    }
    cout<<"YES\n";
}
int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    int T;
    cin>>T;
    while(T--)
    {
        solve();
    }
    return 0;
}

详细

Test #1:

score: 100
Accepted
time: 0ms
memory: 3520kb

input:

3
5 2 3
5 1 3 2 4
5 2
1 2 4
5 5 5
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
3 2 2
3 1 2
3 2
2 3

output:

YES
YES
NO

result:

ok 3 lines

Test #2:

score: -100
Wrong Answer
time: 1ms
memory: 5704kb

input:

100
2 1 2
2 1
2
1 1
2 1 2
1 2
1
2 2
2 1 1
1 2
1
2
6 1 5
3 4 2 5 6 1
3
5 2 1 1 1
6 1 6
2 1 3 6 4 5
1
4 1 2 2 1 4
3 3 2
2 1 3
2 1 3
2 2
1 1 1
1
1
1
1 1 1
1
1
1
2 1 2
2 1
2
1 2
4 4 3
2 1 3 4
2 1 3 4
4 3 1
1 1 1
1
1
1
6 5 1
6 2 5 4 3 1
6 2 4 3 1
4
1 1 1
1
1
1
6 5 3
3 6 1 4 5 2
3 6 1 4 2
3 3 4
4 3 4
3 4 ...

output:

YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
NO
YES
YES
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES...

result:

wrong answer 28th lines differ - expected: 'NO', found: 'YES'